Among submarine commanders in World War II, Dudley "Mush" Morton stood out as an admired and feared warrior at the helm of the USS Wahoo. He would relentlessly attack the Japanese at every opportunity, going through his supply of torpedoes in record time on every patrol. In only nine months, he racked up an astounding list of achievements and became the first American skipper to destroy an entire enemy convoy singlehandedly. The author of a number of submarine histories, Don Keith profiles this dynamic and ultimately divisive commander, who fought the war on his own terms and refused to do so any other way.